5624663521 has 8 divisors (see below), whose sum is σ = 5782228200. Its totient is φ = 5467390848.

The previous prime is 5624663507. The next prime is 5624663533. The reversal of 5624663521 is 1253664265.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4294967296 + 1329696225 = 65536^2 + 36465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5624663521 - 2⁵ = 5624663489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5624663581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33646 + ... + 111271.

It is an arithmetic number, because the mean of its divisors is an integer number (722778525).

Almost surely, 2^5624663521 is an apocalyptic number.

It is an amenable number.

5624663521 is a deficient number, since it is larger than the sum of its proper divisors (157564679).

5624663521 is a wasteful number, since it uses less digits than its factorization.

5624663521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146003.

The product of its digits is 259200, while the sum is 40.

The square root of 5624663521 is about 74997.7567731196. The cubic root of 5624663521 is about 1778.4111902075.

The spelling of 5624663521 in words is "five billion, six hundred twenty-four million, six hundred sixty-three thousand, five hundred twenty-one".